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Nitrogen filled binoculars

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Filling with gas

— filling the binocular/monocular body with a special inert gas (usually nitrogen or argon) serves several purposes. Firstly, such a gas does not react with structural elements, as it can happen with oxygen from the air — this increases the service life of the product. Secondly, the filler is also devoid of water vapor — this also has a positive effect on reliability, in addition, it prevents lenses from fogging from the inside. Also, filling with gas usually indicates a high degree of dust and water protection, since such cases are, by definition, hermetic.
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Binoculars / Monocular Vortex Diamondback HD 15x56
Vortex Diamondback HD 15x56
Suitable for:night
Multiplicity:15 x
Lens:56 mm
Line of sight:77 m
Prism:Roof, BaK-4
Weight:987 g
Colour:
Price from $320.98 up to $369.00 
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